lafleur



S. LAFLEUR.

AuToMATTc TRAIN sToP.

APPLICATION FILED NOV. I9, |920.

1,378,800. Patented May 17, 1921.

. UNITED STATES y lPATENT OFFICE.

' ffvsINAI LAFLEUR, or FOLEYE'T, ONTARIO, CANADA, lAssIcrNoR orONE-THIRD rro J.

, EDOUARD coRoN, or MONTREAL, QUEBEC, CANADA.

AUTOMATIC TRAIN-STOP. l

lTo all @hom z't may concem i ject of the King of Great Britain, andresident of the town of Foleyet, in the Province of Ontario, Dominion ofCanada, have invented certain new` and useful Improvements .in AutomaticTrain-Stops, of which the-following is a specification.

rlfhis invention relates to improvements in automatic train stopdevice,'and the objects of the invention are to rovide simple andeffective means byV rwhich trains may be stopped whenever anylof thetrucks supporting the car body become displaced or by- 'which accidentsof a Aserious nature may be avoided; further objects are to provide anlinvention of this character of simple construction, composed of few andsimple parts, all well designed to perform the work required of them,and itconsists essentially of the improved construction hereinafterdescribed in detail in the accompanying specifi'cation and drawings. Inthe drawings:

Figure l is a side elevation of the freightV f car having my inventionapplied thereto;

Fig. 2 is a plan view ofthe underside of the car with the car bodyindicatedin dotted lines.

Fig. 3 is a perspective view of the working parts of the device.

Fig. 4 is a perspective detail of the trip device.

In the'drawings like characters of reference indicate correspondingparts in all the figures. y e

Referringto the drawings:

A indicates a freight car, and B the trucks thereof, of which two vareshown; C indicates the train line pipe, D the triple valve. Vand E, thecompressed-air reservoir, all o well-known construction; F indicates arelease valve or angle cock of any convenient design having acontrolling lever 10, designed when in the position indicated in dottedlines, to open the valveF, and thusV `,open the train line. pipe andapply the air brakes.' The valve F is connected to the train line pipeand to the triple valve by any convenient means.

l A T-.connection 11 connects with the pipe 12 leading` from theT-connection 13 on the train line pipe, the said VT valve 11 connectingon the side with a p Specification of Letters Patent.

Application'iled Novemberl 19, 1920. Serial No. 425,187.

Y The lever 10 is normally retained in closed position by means of a rodor link 15, ex-

tending to a ring 16, which is supported on an openhook 17 carried by abracket' 18.

When the ring 16 is disengaged from the hoo.k,^thelever 10 lunderactuation of a spring 19, is designed toV move the valve F to openposition, the opposite end of the spring 19 to that connected to thelever 10 being supported by an arm 20 formed on a bracket 21, both thebrackets 18 and 21 lbeiig connected to the underside of the car Meansare provided, according to the present invention, whereby'displacementof the trucks, or, in fact any other desired-part of thecar body, shoulddisengage the ring 16 from the hook Y17, and thus cause application ofthe brakes. The .means IL have shown comprising a plurality of cables,wires or cords 22 each connected to theV ring 16 and extending oversuitably placed pulleys 23 to the trucks.

In the embodiment I have illustrated, the cables 22 extend throughperforations 24 formed in extension plates 25 on the ends of the truck,the cables having rings 26 at their extremity which will serve to retainthem in position and which will also serve as a means of applying thebrakes in the case of emergency, or, in the case of a runaway car.

It will be seen that any person adjacent to the car while it is passingat a moderate p or scope thereof, it is intended that all mattercontained in the accompanying specification and drawings shall beinterpreted as illustrative and not in a limiting sense.

What I claim as my invention is:

1. An automatic train stop comprising a valve operatively connected tothe air brake system, adapted when opened to permit the escape of airand cause the application of the brakes, spring means tending to movethe valve to open position, a trip device nor- `mally retaining thevalve in closed position,

system, adapted When opened to permit the .escape of air and cause theapplication of the brakes, spring means tending to move the valve toopen position, a trip device normally retaining the valve in closedposition, and releasing means :tor the trip device operable bydisplacement of certain Vparts of carconstruction said releasing meansbeing also manually operable. y

3. An automatic train stop comprising a valve operatively connected tothe air brake system, adapted when opened to permit the escape of airand cause the application of the brakes, spring ine-ans tending to movethe valve to open position, a trip device normally retaining the valvein closed position, and car trucks having perforated extension plates,and releasing means for the trip device including cables extendingthrough the extension plates and having rings at their extremity, andpulleys supporting the cables.

4L. An automatic tra-in stop comprising an air release valve comiectedto the air brake system, and lever controlling the same, spring meansnormally tending to move the lever to open position of the valve, a linkconnected to the lever, a ring on the link, a hook member supporting thering and normally retaining the same, means for disengaging the ringfrom the hook, adapted to be operated by displacement of certain partsol the car construction.

5. An automatic train stop comprising an air release valve connected tothe air brake system, and lever controlling the same,

spring means normally tending to move the lever o open position of thevalve, a link connected to thelever, a ring on the link, a book membersupporting the ring and normally retaining the same, means fordisengaging the ring from the hook, adapted to beoperated bydisplacement of certain parts of the car construction, the said meansincluding' cables, and pulleys supporting the cables.

. ln witness whereof l have hereunto set my hand in the presence of twowitnesses.

SINAI LAFLEUR. Titnesses V:

Arr. ARGHAMBAULT, J. E. CoiioN.

